package com.hdo.web.component;

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

/**
 * @ClassName MyExceptionHandler
 * @Author XWZ
 * @Description
 * @Date 2018-08-26 15:28 星期日 SpringBootProgram
 * @VERSION 1.0.0
 **/
@ControllerAdvice
public class MyExceptionHandler {

    //1、浏览器客户端返回的都是json
    //@ResponseBody
    //@ExceptionHandler(UserNotExistException.class)
    //public Map<String,Object> handleException(Exception e){
    //    Map<String,Object> map = new HashMap<>();
    //    map.put("code","user.notexist");
    //    map.put("message",e.getMessage());
    //    return map;
    //}

    @ExceptionHandler(UserNotExistException.class)
    public String handleException(Exception e, HttpServletRequest request){
        Map<String,Object> map = new HashMap<>();
        //传入我们自己的错误状态码  4xx 5xx
        /**
         * Integer statusCode = (Integer) request
         .getAttribute("javax.servlet.error.status_code");
         */
        request.setAttribute("javax.servlet.error.status_code",500);
        map.put("code","user.notexist");
        map.put("message","用户出错啦");

        request.setAttribute("ext",map);
        //转发到/error
        return "forward:/error";
    }
}
